Operation CHARM: Car repair manuals for everyone.

Auxiliary A/C-Heating System

1. Verify customer concern by operating the rear climate control system.
2. Visually inspect the components of the rear climate control system.

VISUAL INSPECTION CHART

Mechanical
^ Stuck or binding air circulation doors
^ Cracked or kinked coolant control solenoid valve hoses

Electrical
^ Blown fuse(s):
- 75 A A/C CONT
- 15 A REAR BLOWER (2)
- 10 A RELAYS
^ Damaged or corroded rear blower motor resistor
^ Damaged rear blower motor
^ Damaged A/C electronic door actuator motors
^ Damaged connectors
^ Broken or loose wiring harness
^ Corroded or poor connections
^ Damaged blower motor switches
^ Damaged rear blower motor relay (if equipped with EATC)
^ Damaged rear blower switch relay (if equipped with EATC)

3. If fault is not visually evident, determine the symptom and proceed to the symptom chart. Auxiliary A/C-Heating System